- 行业: Weather
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The American Meteorological Society promotes the development and dissemination of information and education on the atmospheric and related oceanic and hydrologic sciences and the advancement of their professional applications. Founded in 1919, AMS has a membership of more than 14,000 professionals, ...
The symmetry that describes a three-dimensional configuration that is the same in every plane containing the axis of symmetry. In cylindrical coordinates this implies independence of the azimuthal coordinate.
Industry:Weather
1. An abrupt change in the course of a stream or river, generally from one channel to a new one. In this meaning, the change is considered more extensive than the cutoff of a meander or similar local change in channel position. 2. Any sudden cutting off or separation of land or abrupt change in the course of a stream, generally by breaking through the stream banks during a flood, including the formation of a cutoff meander.
Industry:Weather
In Luc-en-Diois, Department of Drôme in France, a wind that blows warm in winter and cool in summer.
Industry:Weather
The number of molecules (6. 02214 × 1023) in one mole of gas. That this number is a constant for permanent gases is Avogadro's law.
Industry:Weather
Physical law stating that equal volumes of different ideal gases at the same temperature and pressure contain equal numbers of particles (molecules or atoms). The interpretation of the law lies in the statistical–mechanical theory of equipartition of energy, and the ideal gas law is a consequence of this. The volume occupied by one mole of gas (see Avogadro's number) is the same for all gases (22. 414 L). See also Loschmidt's number.
Industry:Weather
An evaluation, according to set procedure, of those weather elements that are most important for aircraft operations. It always includes the cloud height or vertical visibility, sky cover, visibility, obstructions to vision, certain atmospheric phenomena, and wind speed and direction that prevail at the time of the observation. Complete observations include the sea level pressure, temperature, dewpoint temperature, and altimeter setting. Aviation weather observations are further classified as record, special, check, and local extra observations. The first two types are encoded and transmitted as reports on communications circuits. Compare synoptic weather observation.
Industry:Weather
A forecast of weather elements of particular interest to aviation. These elements include the ceiling, visibility, upper winds, icing, turbulence, and types of precipitation and/or storms. Aviation weather forecasts can be subdivided into four basic categories: area forecasts, terminal forecasts, route forecasts, and flight forecasts.
Industry:Weather
A forecast of weather elements of particular interest to aviation. These elements include the ceiling, visibility, upper winds, icing, turbulence, and types of precipitation and/or storms. Aviation weather forecasts can be subdivided into four basic categories: area forecasts, terminal forecasts, route forecasts, and flight forecasts.
Industry:Weather
A northwest wind in the center of the Massif Central of France (i.e., coming from Auvergne). It is cold and generally brings rain or snow.
Industry:Weather
An observation of elements that pertain to aviation including some or all of the following: station designator; type and time of report, sky cover; ceiling; visibility; weather and obstructions to vision; sea level pressure; temperature and dewpoint; wind direction, speed, and character; altimeter setting; remarks; and coded data.
Industry:Weather
